How to Design Parts That Always Fit Together

Engineering Gone Wild
Engineering Gone Wild
Published on 23.11.2025

📌 To learn for free on Brilliant, go to https://brilliant.org/EngineeringGoneWild/ . You’ll also get 20% off an annual premium subscription.

🤖My Tech Channel: https://www.youtube.com/@vql4k
📄My List of Mechanical Engineering Technical Interview Questions: https://payhip.com/EngineeringGoneWild
⚙️Learn about Circuits: https://amzn.to/438zTw7
👾Join My Discord: https://discord.gg/ur4MBCbVRR
💎Become a Member: https://www.youtube.com/channel/UCiuvIXoJsLBVgkhDA8gTuJg/join
⌨️My Keyboard: https://www.keychron.com/products/keychron-q14-max-alice-layout-qmk-wireless-custom-mechanical-keyboard?ref=VICTORLI&variant=41589612445785

Designing parts that assemble flawlessly, whether you’re producing a hundred or a million units, comes down to mastering fits, tolerances, and tolerance stack-up analysis. In this video, we walk through how tolerances actually work in the real world, how to choose the correct fit for mating features, and how to validate your designs will assemble correctly. By the end, you’ll have a killer workflow for assigning tolerances with confidence and ensuring all your designs assemble perfectly, every single time.

📚Essential Books for Mechanical Engineers
Machinery's Handbook: https://amzn.to/4gTXOFN
Engineers' Practical Databook: https://amzn.to/3qwTo1S
Shigley's Mechanical Engineering Design: https://amzn.to/467CCrh
An Introduction to Mechanical Engineering: https://amzn.to/43mpOvS

🖨️My Favorite 3D Printers
Flashforge AD5X: https://flashforge.sjv.io/K03W6e
Bambu Lab A1: https://amzn.to/45q9PzM

📱Best Calculators for Engineering Students
TI-84 Plus CE: https://amzn.to/40YwrD1
TI-30XIIS: https://amzn.to/3MYIP02

📙My Favorite Textbooks
Material Science: https://amzn.to/3ZTd79K
Mechanics of Materials: https://amzn.to/3V7ClzI
Heat Transfer: https://amzn.to/3M0MM45
Thermodynamics: https://amzn.to/3LVh1Jl
Fluid Mechanics: https://amzn.to/46uMWso
Manufacturing Processes: https://amzn.to/3ZRrGL3
Design for Manufacture & Assembly: https://amzn.to/3xAZUZ9

📗My Favorite CAD Books
SOLIDWORKS: https://amzn.to/3LJrre7
NX: https://amzn.to/3UxPGQp
CATIA: https://amzn.to/3UBHJtt

📘My Favorite CAE Books
SOLIDWORKS SIMULATION: https://amzn.to/3BNHqmu
ANSYS: https://amzn.to/3EalPYD
Concepts/Applications of FEA: https://amzn.to/3dIKFUs

💻Best Laptops/Tablets for Mechanical Engineers / ME Students
MSI Thin 15: https://amzn.to/4cHvgN4
Acer Nitro 5: https://amzn.to/40Yw7UP
Dell Precision 5690: https://amzn.to/45QezOU
HP Omen: https://amzn.to/47wu1AV
Asus ROG Zephyrus: https://amzn.to/4131rUG
MSI Creator M14: https://amzn.to/3Tp322j
Macbook Pro: https://amzn.to/3ZI8zol

🖥️My Favorite Monitors
BenQ RD320UA Monitor: https://amzn.to/3XpiOfP
BenQ RD320U Monitor: https://amzn.to/420lFPa
BenQ RD280UA Monitor: https://amzn.to/4bytUmH
BenQ RD280U Monitor: https://amzn.to/4cTtOqL
BenQ RD240Q Monitor: https://amzn.to/4btiyQY

💡My Favorite Monitor Light
BenQ ScreenBar Pro Monitor Light: https://amzn.to/41JbbDU

🎥Filming Gear
Manfrotto Compact Tripod: https://amzn.to/4g1u2h9
Rode Wireless GO II Mic: https://amzn.to/3XTAC1u
DJI Osmo Pocket 3 Creator Combo: https://amzn.to/3WfvUfr
SanDisk 256GB MicroSDXC: https://amzn.to/3QXchDh

👊 SUBSCRIBE & DING THE BELL - https://www.youtube.com/channel/UCiuvIXoJsLBVgkhDA8gTuJg?sub_confirmation=1
🧧 Support this channel - paypal.me/Victor25
🍺 Buy Me a Drink - https://www.buymeacoffee.com/EngGoneWild

🍿Watch Next
What do I do as a Mechanical Engineer: https://youtu.be/1amVwnbuObo
the ONE skill that changed my life as a mechanical engineer: https://youtu.be/07ynjb23r5c
What are Mechanical Engineering Interviews Like: https://youtu.be/HfsBMNKRObo
Do This to ACE any Technical Interview:
https://youtu.be/706HpxO6yps
Best Mechanical Engineering Skills to Learn: https://youtu.be/XrKF8uTDR9U
How I went from FAILING to TOP Mechanical Engineering Student:
https://youtu.be/5ZW9YYtZC2Q

Timestamps:
00:00 Intro
01:10 What is a Dimension?
01:52 What is a Tolerance?
02:29 Process Capability
03:08 Assigning Tolerances
04:20 Tolerance Example
04:44 Engineering Fit Types
05:34 ANSI Limits & Fits
05:57 ISO Limits & Fits
06:19 Fit Design Example
07:39 Tolerance Stack-up
08:26 Tolerance Stack-up Analysis
11:05 Tolerance Stack-up Analysis Example
13:15 Precision Fit Design Workflow
14:04 Conclusion

📱 SOCIAL MEDIA
https://www.instagram.com/engineeringgonewild/
https://www.facebook.com/meengineeringstudio

Amazon Associates Affiliate Links
*** As an Amazon Associate I earn from qualifying purchases ***
FTC Disclosure: This video was sponsored by Brilliant

Runtime 00:15:06

mechanical design, design parts that fit together, tolerances, mechanical fits, mechanical, tolerances and fits, gd&t, manufacturing tolerances, machining tolerances, how to design parts that fit together, tolerance stack up analysis, tolerance analysis, geometric dimensioning and tolerancing, gdt, tolerances explained, what are tolerances, mechanical mates, product design, engineering tolerances explained, design tips, gd&t symbols, dfm, dfma, mechanical drawing, true position,

COMMENTS: 0